A/CC's Consolidated Risk Tables

Earth Impact Risk Ratings Posted in the Last 31 Days

Compiled at 1639 UTC on 22 May 2018

[ The Tracking News | ephemerides | cleared ]

Notes: The time horizon for JPL is 100 years from today and for NEODyS is usually the year 2090. Both risk monitors also post a few special objects with impact solutions beyond 100 years. For the latest official risk assessments, and for explanations of terminology and methodology, see NASA/JPL Sentry and NEODyS CLOMON2.
0000NNN000

Object

Risk
Monitor
 A/CC  Noted 
 Time & Day 
UTC
0000T0000
Year
Range

VI
#
000NN00
Prob
Cum
T0000
PS
Cum
T0000
PS
Max

T
S


Notes for Latest Risk Assessments
2018 KF1NEODyS1601 May 22R E M O V E D
JPL Sentry1532 May 222101-210111.244e-06-6.55-6.550Computed at 07:46 May 22nd Pacific time based on 122 observations spanning 1.8539 days (2018-May-19.30836 to 2018-May-21.16228). Diameter approximately 0.025 km. from weighted mean H=25.67.
Assessment postings were noted by A/CC on 20 May, 21 May & 22 May   -   References: MPEC 2018-K47 plus DOUs 2018-K49 & 2018-K63
2018 JD5JPL Sentry1532 May 22R E M O V E DRisk listing removed at 1434 UTC May 22nd
NEODyS1938 May 192075-211124.54e-09-5.69-5.760Based on 18 optical observations (of which 0 are rejected as outliers) from 2018-05-15.448 to 2018-05-18.445.
Assessment postings were noted by A/CC on 19 May & 22 May   -   References: MPEC 2018-K24 plus DOU 2018-K63
2018 JC2JPL Sentry1630 May 202050-205011.928e-07-5.51-5.510Computed at 07:15 May 20th Pacific time based on 68 observations spanning 10.999 days (2018-May-09.32052 to 2018-May-20.31985). Diameter approximately 0.095 km. from weighted mean H=22.76.
NEODyS1630 May 20205012.07e-10-8.42-8.420Based on 68 optical observations (of which 0 are rejected as outliers) from 2018-05-09.321 to 2018-05-20.321.
Assessment postings were noted by A/CC on 12 May, 13 May, 14 May, 15 May, 16 May, 17 May, 18 May, 19 May & 20 May   -   References: MPEC 2018-J66 plus DOUs 2018-J76, 2018-J81, 2018-K01, 2018-K08, 2018-K14, 2018-K21 & 2018-K41
2018 JL1NEODyS1600 May 192112-211874.13e-06-6.68-7.13n/aBased on 46 optical observations (of which 0 are rejected as outliers) from 2018-05-08.265 to 2018-05-16.243.
JPL Sentry1520 May 182112-211845.402104e-06-6.55-6.720Computed at 07:34 May 18th Pacific time based on 39 observations spanning 7.9781 days (2018-May-08.26382 to 2018-May-16.241941). Diameter approximately 0.015 km. from weighted mean H=26.73.
Assessment postings were noted by A/CC on 10 May, 11 May, 12 May, 13 May, 14 May, 15 May, 16 May, 17 May, 18 May & 19 May   -   References: MPEC 2018-J45 plus DOUs 2018-J58, 2018-J75, 2018-J81 & 2018-K14
2018 JG1NEODyS1938 May 19211822.66e-06-5.74-5.78n/aBased on 75 optical observations (of which 0 are rejected as outliers) from 2018-05-08.180 to 2018-05-18.421.
JPL Sentry1600 May 192118-211811.105e-06-6.11-6.110Computed at 07:28 May 19th Pacific time based on 75 observations spanning 10.240 days (2018-May-08.17968 to 2018-May-18.419992). Diameter approximately 0.043 km. from weighted mean H=24.51.
Assessment postings were noted by A/CC on 10 May, 11 May, 12 May, 13 May, 14 May, 15 May, 16 May, 17 May, 18 May & 19 May   -   References: MPEC 2018-J41 plus DOUs 2018-J54, 2018-J58, 2018-J75, 2018-J76, 2018-J81, 2018-K01, 2018-K08 & 2018-K21
2018 JNJPL Sentry1555 May 212100-210015.521e-07-6.62-6.620Computed at 08:32 May 21st Pacific time based on 125 observations spanning 15.910 days (2018-May-05.42349 to 2018-May-21.33377). Diameter approximately 0.033 km. from weighted mean H=25.04.
NEODyS1630 May 202088-211241.08e-06-6.34-6.370Based on 123 optical observations (of which 1 are rejected as outliers) from 2018-05-05.424 to 2018-05-20.464.
Assessment postings were noted by A/CC on 8 May, 9 May, 10 May, 12 May, 14 May, 15 May, 16 May, 17 May, 18 May, 19 May, 20 May & 21 May   -   References: MPEC 2018-J23 plus DOUs 2018-J26, 2018-J38, 2018-J58, 2018-J76, 2018-J81, 2018-K01, 2018-K08, 2018-K14, 2018-K21, 2018-K41 & 2018-K49
2018 JDJPL Sentry1530 May 102061-209670.00024665389-4.53-4.530Computed at 08:03 May 10th Pacific time based on 33 observations spanning 4.2144 days (2018-May-04.40029 to 2018-May-08.614703). Diameter approximately 0.016 km. from weighted mean H=26.69.
NEODyS1538 May 82061-2118331.34e-04-4.81-4.82-Based on 31 optical observations (of which 0 are rejected as outliers) from 2018-05-04.401 to 2018-05-07.119.
Assessment postings were noted by A/CC on 6 May, 7 May, 8 May & 10 May   -   References: MPEC 2018-J09 plus DOUs 2018-J13, 2018-J18 & 2018-J38
2018 HJ2NEODyS1938 May 192085-211449.16e-04-3.03-3.340Based on 97 optical observations (of which 0 are rejected as outliers) from 2018-04-23.412 to 2018-05-19.334.
JPL Sentry1600 May 192085-208519.812e-04-2.97-2.970Computed at 07:26 May 19th Pacific time based on 97 observations spanning 25.923 days (2018-Apr-23.41101 to 2018-May-19.33361). Diameter approximately 0.044 km. from weighted mean H=24.45.
Assessment postings were noted by A/CC on 26 April, 27 April, 29 April, 2 May, 4 May, 5 May, 6 May, 7 May, 8 May, 9 May, 10 May, 11 May, 12 May, 14 May, 15 May, 17 May, 18 May & 19 May   -   References: MPEC 2018-H90 plus DOUs 2018-H103, 2018-J04, 2018-J05, 2018-J13, 2018-J18, 2018-J28, 2018-J38, 2018-J54, 2018-J76, 2018-K08, 2018-K14 & 2018-K21
2018 HW1NEODyS1606 May 152116-211833.18e-07-7.44-7.44n/aBased on 51 optical observations (of which 0 are rejected as outliers) from 2018-04-23.203 to 2018-05-12.098.
JPL Sentry1808 May 142108-211871.650619e-05-5.65-5.690Computed at 10:40 May 14th Pacific time based on 55 observations spanning 18.894 days (2018-Apr-23.20248 to 2018-May-12.09691). Diameter approximately 0.024 km. from weighted mean H=25.77.
Assessment postings were noted by A/CC on 24 April, 25 April, 27 April, 29 April, 2 May, 12 May, 14 May & 15 May   -   References: MPEC 2018-H82 plus DOUs 2018-H84, 2018-H96, 2018-J02, 2018-J58 & 2018-J76
2018 GR4NEODyS1650 May 162048-21141481.31e-04-5.07-5.260Based on 66 optical observations (of which 3 are rejected as outliers) from 2018-04-12.318 to 2018-05-10.298.
JPL Sentry1606 May 152048-2112580.00035062228-4.64-4.920Computed at 08:43 May 15th Pacific time based on 64 observations spanning 27.981 days (2018-Apr-12.31705 to 2018-May-10.29767). Diameter approximately 0.013 km. from weighted mean H=27.06.
Assessment postings were noted by A/CC on 21 April, 22 April, 23 April, 24 April, 27 April, 5 May, 6 May, 7 May, 10 May, 15 May & 16 May   -   References: DOUs 2018-H56, 2018-H63, 2018-H69, 2018-H71, 2018-J05, 2018-J18, 2018-J38 & 2018-J81
2018 GG4JPL Sentry1631 April 262058-207021.4336e-07-7.23-7.450Computed at 08:58 April 26th Pacific time based on 34 observations spanning 11.187 days (2018-Apr-13.43759 to 2018-Apr-24.624861). Diameter approximately 0.019 km. from weighted mean H=26.22.
NEODyS1547 April 262058-207025.73e-08-7.66-7.820Based on 38 optical observations (of which 2 are rejected as outliers) from 2018-04-13.438 to 2018-04-24.626.
Assessment postings were noted by A/CC on 21 April, 22 April & 26 April   -   References: DOUs 2018-H56 & 2018-H85
2018 GL2JPL Sentry1532 May 22R E M O V E DRisk listing removed at 1420 UTC May 22nd
NEODyS1550 May 122060-209373.75e-07-6.03-6.290Based on 70 optical observations (of which 0 are rejected as outliers) from 2018-04-11.236 to 2018-05-10.335.
Assessment postings were noted by A/CC on 21 April, 22 April, 23 April, 24 April, 11 May, 12 May, 14 May & 22 May   -   References: DOUs 2018-H56, 2018-H63, 2018-H71, 2018-J54 & 2018-K63
2018 GE2JPL Sentry1639 May 222060-2117437.511643e-05-5.42-5.990Computed at 09:14 May 22nd Pacific time based on 104 observations spanning 36.027 days (2018-Apr-10.40973 to 2018-May-16.436634). Diameter approximately 0.013 km. from weighted mean H=27.02.
NEODyS1606 May 152054-21172186.29e-05-5.46-6.070Based on 101 optical observations (of which 4 are rejected as outliers) from 2018-04-10.411 to 2018-05-08.371.
Assessment postings were noted by A/CC on 21 April, 22 April, 23 April, 24 April, 26 April, 27 April, 6 May, 14 May, 15 May & 22 May   -   References: DOUs 2018-H56, 2018-H63, 2018-H69, 2018-H71, 2018-H85, 2018-J13, 2018-J76 & 2018-K63
2018 EZ2NEODyS1600 May 192055-2118152.98e-05-5.25-5.3n/aBased on 89 optical observations (of which 0 are rejected as outliers) from 2018-03-12.422 to 2018-05-17.372.
JPL Sentry2138 May 182118-211811.248e-08-9.03-9.030Computed at 13:59 May 18th Pacific time based on 89 observations spanning 65.742 days (2018-Mar-12.62906 to 2018-May-17.371548). Diameter approximately 0.017 km. from weighted mean H=26.55.
Assessment postings were noted by A/CC on 1 May, 2 May, 18 May & 19 May   -   References: DOUs 2018-J01 & 2018-K14
2017 TA6JPL Sentry1606 May 102049-2117420.00014938715-5.12-5.430Computed at 08:42 May 10th Pacific time based on 37 observations spanning 19.017 days (2017-Sep-30.49167 to 2017-Oct-19.50912). Diameter approximately 0.015 km. from weighted mean H=26.71.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2017 TU1JPL Sentry1530 May 102076-211681.629928e-06-6.58-6.990Computed at 08:07 May 10th Pacific time based on 43 observations spanning 2.5792 days (2017-Oct-10.32694 to 2017-Oct-12.90617). Diameter approximately 0.020 km. from weighted mean H=26.15.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2017 RP16JPL Sentry1530 May 102065-2112103.502092e-06-6.71-7.090Computed at 07:52 May 10th Pacific time based on 20 observations spanning 8.0112 days (2017-Sep-15.41118 to 2017-Sep-23.42238). Diameter approximately 0.012 km. from weighted mean H=27.23.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2017 BG92JPL Sentry1530 May 102045-2105161.13471023e-05-6.96-7.460Computed at 07:47 May 10th Pacific time based on 13 observations spanning 7.1652 days (2017-Jan-28.39899 to 2017-Feb-04.56418). Diameter approximately 0.006 km. from weighted mean H=28.65.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2017 BE30JPL Sentry1530 May 102100-210014.830e-08-7.99-7.990Computed at 08:22 May 10th Pacific time based on 30 observations spanning 7.0135 days (2017-Jan-27.53064 to 2017-Feb-03.5441). Diameter approximately 0.019 km. from weighted mean H=26.27.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2016 WGJPL Sentry1530 May 102076-2115245.803673e-06-4.24-4.940Computed at 08:13 May 10th Pacific time based on 132 observations spanning 20.840 days (2016-Nov-04.59001 to 2016-Nov-25.43035). Diameter approximately 0.075 km. from weighted mean H=23.28.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2016 TC57JPL Sentry1530 May 102112-211211.228e-06-7.27-7.270Computed at 08:05 May 10th Pacific time based on 38 observations spanning 23.120 days (2016-Oct-13.43124 to 2016-Nov-05.551384). Diameter approximately 0.013 km. from weighted mean H=27.06.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2016 JAJPL Sentry1606 May 102064-2117149.740563e-07-7.46-7.940Computed at 08:41 May 10th Pacific time based on 50 observations spanning 10.057 days (2016-May-01.32646 to 2016-May-11.383784). Diameter approximately 0.011 km. from weighted mean H=27.51.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2016 HF3JPL Sentry1606 May 102078-207812.161e-06-5.75-5.750Computed at 08:43 May 10th Pacific time based on 298 observations spanning 42.026 days (2016-Apr-27.30971 to 2016-Jun-08.33587). Diameter approximately 0.038 km. from weighted mean H=24.76.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2016 FE15JPL Sentry1530 May 102068-211636.11513e-07-8.02-8.040Computed at 07:46 May 10th Pacific time based on 32 observations spanning 9.9900 days (2016-Mar-31.42378 to 2016-Apr-10.413817). Diameter approximately 0.006 km. from weighted mean H=28.77.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2016 FA14JPL Sentry1530 May 102072-207212.303e-08-8.68-8.680Computed at 07:47 May 10th Pacific time based on 29 observations spanning 5.1571 days (2016-Mar-31.40005 to 2016-Apr-05.55716). Diameter approximately 0.012 km. from weighted mean H=27.31.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2016 EV84JPL Sentry1606 May 102056-209641.86004e-06-6.78-6.880Computed at 09:01 May 10th Pacific time based on 103 observations spanning 5.9596 days (2016-Mar-10.37417 to 2016-Mar-16.33377). Diameter approximately 0.015 km. from weighted mean H=26.76.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2016 DK2JPL Sentry1530 May 102069-206911.512e-06-7.58-7.580Computed at 08:13 May 10th Pacific time based on 28 observations spanning 3.1356 days (2016-Feb-27.20826 to 2016-Mar-01.34384). Diameter approximately 0.005 km. from weighted mean H=29.01.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2016 DK1JPL Sentry1534 May 102043-2118420.00026671872-4.77-5.220Computed at 08:33 May 10th Pacific time based on 63 observations spanning 18.326 days (2016-Feb-27.16982 to 2016-Mar-16.495854). Diameter approximately 0.011 km. from weighted mean H=27.36.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2016 CK137JPL Sentry1530 May 102040-2118775.14628701e-05-5.56-5.970Computed at 08:22 May 10th Pacific time based on 28 observations spanning 8.0051 days (2016-Feb-05.29335 to 2016-Feb-13.298416). Diameter approximately 0.012 km. from weighted mean H=27.34.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2016 AZ193JPL Sentry1630 April 302018-21145002.1981883e-06-6.28-7.220Computed at 14:28 April 6th of 2017 Pacific time based on 9 observations spanning .15930 days (2016-Jan-03.25638 to 2016-Jan-03.41568). Diameter approximately 0.016 km. from weighted mean H=26.62.
An assessment posting was noted by A/CC on 30 April   -   References: no recent MPECs
2015 UR67JPL Sentry1530 May 102091-209113.222e-06-6.29-6.290Computed at 08:07 May 10th Pacific time based on 100 observations spanning 19.922 days (2015-Oct-31.3432 to 2015-Nov-20.26488). Diameter approximately 0.019 km. from weighted mean H=26.30.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2015 TL21JPL Sentry1530 May 102061-209563.41422e-06-6.12-6.570Computed at 07:42 May 10th Pacific time based on 88 observations spanning 11.040 days (2015-Oct-08.23237 to 2015-Oct-19.272403). Diameter approximately 0.018 km. from weighted mean H=26.42.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2015 HE183JPL Sentry1530 May 102090-210533.156122e-06-7.13-7.140Computed at 07:25 May 10th Pacific time based on 8 observations spanning 2.0408 days (2015-Apr-24.49532 to 2015-Apr-26.536079). Diameter approximately 0.008 km. from weighted mean H=28.18.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2015 GB1JPL Sentry1530 May 102031-209049.18299e-07-6.78-7.180Computed at 07:24 May 10th Pacific time based on 35 observations spanning 20.002 days (2015-Mar-24.48324 to 2015-Apr-13.48511). Diameter approximately 0.016 km. from weighted mean H=26.57.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2015 EGJPL Sentry1530 May 102115-211511.040e-07-7.66-7.660Computed at 07:35 May 10th Pacific time based on 85 observations spanning 5.9997 days (2015-Mar-09.3314 to 2015-Mar-15.33115). Diameter approximately 0.025 km. from weighted mean H=25.66.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2015 BW516JPL Sentry1530 May 102046-207373.8639533e-05-5.53-5.590Computed at 07:18 May 10th Pacific time based on 16 observations spanning 8.4369 days (2015-Jan-20.33292 to 2015-Jan-28.76983). Diameter approximately 0.010 km. from weighted mean H=27.65.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2015 BY3JPL Sentry1530 May 102033-2085101.023943e-06-6.90-7.390Computed at 07:22 May 10th Pacific time based on 25 observations spanning 6.2083 days (2015-Jan-17.26337 to 2015-Jan-23.47166). Diameter approximately 0.011 km. from weighted mean H=27.50.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2014 YNJPL Sentry1530 May 102095-2116235.04182e-05-5.12-5.690Computed at 07:29 May 10th Pacific time based on 80 observations spanning 37.860 days (2014-Dec-16.4088 to 2015-Jan-23.26902). Diameter approximately 0.024 km. from weighted mean H=25.72.
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2014 HD198NEODyS0618 May 22025-2112148.18e-07-7.91-8.290Based on 6 optical observations (of which 0 are rejected as outliers) from 2014-04-25.134 to 2014-04-26.100.
JPL Sentry1600 May 12025-2115786.6711881e-06-7.07-7.550Computed at 22:51 April 7th of 2017 Pacific time based on 12 observations spanning .96633 days (2014-Apr-25.13297 to 2014-Apr-26.0993). Diameter approximately 0.004 km. from weighted mean H=29.64.
Assessment postings were noted by A/CC on 1 May & 2 May   -   References: no recent MPECs
2009 VZ39JPL Sentry1656 May 92018-21169127.117301e-06-6.20-7.600Computed at 11:17 April 7th of 2017 Pacific time based on 8 observations spanning .04342 days (2009-Nov-10.27204 to 2009-Nov-10.31546). Diameter approximately 0.009 km. from weighted mean H=27.89.
An assessment posting was noted by A/CC on 9 May   -   References: no recent MPECs
2008 VS4JPL Sentry1520 May 182018-21143146.040597e-07-5.45-6.320Computed at 00:23 April 8th of 2017 Pacific time based on 10 observations spanning .08330 days (2008-Nov-07.413 to 2008-Nov-07.4963). Diameter approximately 0.049 km. from weighted mean H=24.22.
An assessment posting was noted by A/CC on 18 May   -   References: no recent MPECs
2008 UY91JPL Sentry1540 April 252022-2116485.15995e-08-6.65-7.180Computed at 08:58 April 7th of 2017 Pacific time based on 11 observations spanning .11968 days (2008-Oct-28.2208 to 2008-Oct-28.34048). Diameter approximately 0.036 km. from weighted mean H=24.84.
An assessment posting was noted by A/CC on 25 April   -   References: no recent MPECs
2008 LEJPL Sentry1551 May 52020-21161212.3197952e-06-5.88-6.690Computed at 08:29 April 13th of 2017 Pacific time based on 12 observations spanning .14395 days (2008-Jun-02.29414 to 2008-Jun-02.43809). Diameter approximately 0.022 km. from weighted mean H=25.98.
An assessment posting was noted by A/CC on 5 May   -   References: no recent MPECs
C   L   E   A   R   E   D
2018 KB1NEODyS1532 May 22R E M O V E D
Assessment postings were noted by A/CC on 21 May & 22 May   -   References: MPEC 2018-K43 plus DOU 2018-K63
2018 JZ1NEODyS1606 May 15R E M O V E D
JPL Sentry1808 May 14R E M O V E DRisk listing removed at 1750 UTC May 14th
Assessment postings were noted by A/CC on 12 May, 13 May, 14 May & 15 May   -   References: MPEC 2018-J62 plus DOUs 2018-J76, 2018-J81, 2018-K08, 2018-K14 & 2018-K49
2018 JF1NEODyS1606 May 15R E M O V E D
JPL Sentry1630 May 11R E M O V E DRisk listing removed at 1424 UTC May 11th
Assessment postings were noted by A/CC on 10 May, 11 May, 12 May & 15 May   -   References: MPEC 2018-J40 plus DOUs 2018-J54, 2018-J58 & 2018-J81
2018 HA1JPL Sentry1545 April 24R E M O V E DRisk listing removed at 1518 UTC April 24th
NEODyS1545 April 24R E M O V E D
Assessment postings were noted by A/CC on 22 April, 23 April & 24 April   -   References: MPEC 2018-H65 plus DOUs 2018-H69, 2018-H71, 2018-H84, 2018-J03, 2018-J04, 2018-J13, 2018-J26, 2018-J38, 2018-K01 & 2018-K21
2018 GA5NEODyS1537 April 23R E M O V E D
JPL Sentry1800 April 22R E M O V E DRisk listing removed at 1450 UTC April 22nd
Assessment postings were noted by A/CC on 21 April, 22 April & 23 April   -   References: DOUs 2018-H56, 2018-H63, 2018-H84, 2018-H96, 2018-J05, 2018-J13, 2018-J26, 2018-J38, 2018-J54, 2018-J75, 2018-K21, 2018-K41, 2018-K49 & 2018-K63
2018 EY2NEODyS2200 April 30R E M O V E D
JPL Sentry2230 April 28R E M O V E DRisk listing removed at 1206 UTC March 13th
Assessment postings were noted by A/CC on 28 April & 30 April   -   References: MPEC 2018-H99
2017 BW30NEODyS0022 May 6R E M O V E D
An assessment posting was noted by A/CC on 6 May   -   References: DOU 2018-J05
2015 DD54JPL Sentry1530 May 10R E M O V E DRisk listing removed at 1419 UTC May 10th
An assessment posting was noted by A/CC on 10 May   -   References: DOU 2018-J38
2010 WC9NEODyS1630 May 11R E M O V E D
JPL Sentry0332 May 10R E M O V E DRisk listing removed at 0244 UTC May 10th
Assessment postings were noted by A/CC on 10 May & 11 May   -   References: MPEC 2018-J35 plus DOUs 2018-J38, 2018-J54, 2018-J58, 2018-J75, 2018-J81, 2018-K01, 2018-K08 & 2018-K21
2008 GY21NEODyS1546 May 7R E M O V E D
An assessment posting was noted by A/CC on 7 May   -   References: no recent MPECs
2007 CM26JPL Sentry1630 April 30R E M O V E DRisk listing removed at 1614 UTC April 30th
Assessment postings were noted by A/CC on 29 April & 30 April   -   References: MPEC 2018-H99

Legend: VI# = VI count, Prob Cum = cumulative probability, PS Cum/Max = cumulative/maximum Palermo Scale, TS = Torino Scale (next 100 years)

For a list of risk-rated objects currently under observation, see our ephemerides page.

An impact solution, also known as a "virtual impactor" (VI), is not a prediction but rather a possibility derived from a variant orbit calculation that cannot be eliminated yet based on the existing data. Elimination can come quickly with just a little further observation or may take weeks or months, sometimes years. Once superceded or eliminated, a former impact solution has zero relevance to an object's risk. See Jon Giorgini's "Understanding Risk Pages" for more information.


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